<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryRef" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="课程名称" prop="name">
        <el-input
            v-model="queryParams.name"
            placeholder="请输入课程名称"
            clearable
            @keyup.enter="handleQuery"
        />
      </el-form-item>
      <el-form-item label="课程类型" prop="courseType">
        <el-select v-model="queryParams.courseType" placeholder="请选择课程类型" clearable>
          <el-option
              v-for="dict in les_type"
              :key="dict.value"
              :label="dict.label"
              :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="三级课程分类id" prop="thirdCateId">
        <el-input
            v-model="queryParams.thirdCateId"
            placeholder="请输入三级课程分类id"
            clearable
            @keyup.enter="handleQuery"
        />
      </el-form-item>
      <el-form-item label="售卖方式" prop="free">
        <el-select v-model="queryParams.free" placeholder="请选择售卖方式" clearable>
          <el-option
              v-for="dict in free"
              :key="dict.value"
              :label="dict.label"
              :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="课程状态" prop="status">
        <el-select v-model="queryParams.status" placeholder="请选择课程状态" clearable>
          <el-option
              v-for="dict in les_status"
              :key="dict.value"
              :label="dict.label"
              :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="更新时间" prop="updateTime">
        <el-date-picker clearable
                        v-model="queryParams.updateTime"
                        type="date"
                        value-format="YYYY-MM-DD"
                        placeholder="请选择更新时间">
        </el-date-picker>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
        <el-button icon="Refresh" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
            type="primary"
            plain
            icon="Plus"
            @click="handleAdd"
            v-hasPermi="['course:course:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="success"
            plain
            icon="Edit"
            :disabled="single"
            @click="handleUpdate"
            v-hasPermi="['course:course:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="danger"
            plain
            icon="Delete"
            :disabled="multiple"
            @click="handleDelete"
            v-hasPermi="['course:course:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="warning"
            plain
            icon="Download"
            @click="handleExport"
            v-hasPermi="['course:course:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar v-model:showSearch="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="courseList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="课程id" align="center" prop="id" />
      <el-table-column label="机构id" align="center" prop="insId" />
      <el-table-column label="课程名称" align="center" prop="name" />
      <el-table-column label="课程类型" align="center" prop="courseType">
        <template #default="scope">
          <dict-tag :options="les_type" :value="scope.row.courseType"/>
        </template>
      </el-table-column>
      <el-table-column label="封面" align="center" prop="coverUrl" width="100">
        <template #default="scope">
          <image-preview :src="scope.row.coverUrl" :width="50" :height="50"/>
        </template>
      </el-table-column>
      <el-table-column label="售卖方式" align="center" prop="free">
        <template #default="scope">
          <dict-tag :options="free" :value="scope.row.free"/>
        </template>
      </el-table-column>
      <el-table-column label="课程价格" align="center" prop="price" />
      <el-table-column label="课程状态" align="center" prop="status">
        <template #default="scope">
          <dict-tag :options="les_status" :value="scope.row.status"/>
        </template>
      </el-table-column>
      <el-table-column label="课程评价得分" align="center" prop="score" />
      <el-table-column label="课程总时长" align="center" prop="mediaDuration" />
      <el-table-column label="课程有效期" align="center" prop="validDuration" />
      <el-table-column label="课程总节数" align="center" prop="sectionNum" />
      <el-table-column label="创建时间" align="center" prop="createTime" width="180">
        <template #default="scope">
          <span>{{ parseTime(scope.row.createTime, '{y}-{m}-{d}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="更新时间" align="center" prop="updateTime" width="180">
        <template #default="scope">
          <span>{{ parseTime(scope.row.updateTime, '{y}-{m}-{d}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="更新人" align="center" prop="updateBy" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template #default="scope">
          <el-button link type="primary" icon="Edit" @click="handleUpdate(scope.row)" v-hasPermi="['course:course:edit']">修改</el-button>
          <el-button link type="primary" icon="Delete" @click="handleDelete(scope.row)" v-hasPermi="['course:course:remove']">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
        v-show="total>0"
        :total="total"
        v-model:page="queryParams.pageNum"
        v-model:limit="queryParams.pageSize"
        @pagination="getList"
    />

    <!-- 添加或修改课程对话框 -->
    <el-dialog :title="title" v-model="open" width="500px" append-to-body>
      <el-form ref="courseRef" :model="form" :rules="rules" label-width="80px">
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script setup name="Course">
import { listCourse, getCourse, delCourse, addCourse, updateCourse } from "@/api/course/course";

const { proxy } = getCurrentInstance();
const { les_status, les_type, free } = proxy.useDict('les_status', 'les_type', 'free');

const courseList = ref([]);
const open = ref(false);
const loading = ref(true);
const showSearch = ref(true);
const ids = ref([]);
const single = ref(true);
const multiple = ref(true);
const total = ref(0);
const title = ref("");

const data = reactive({
  form: {},
  queryParams: {
    pageNum: 1,
    pageSize: 10,
    name: null,
    courseType: null,
    thirdCateId: null,
    free: null,
    status: null,
    updateTime: null,
  },
  rules: {
    insId: [
      { required: true, message: "机构id不能为空", trigger: "blur" }
    ],
    name: [
      { required: true, message: "课程名称不能为空", trigger: "blur" }
    ],
    courseType: [
      { required: true, message: "课程类型不能为空", trigger: "change" }
    ],
    coverUrl: [
      { required: true, message: "封面不能为空", trigger: "blur" }
    ],
    firstCateId: [
      { required: true, message: "一级课程分类id不能为空", trigger: "blur" }
    ],
    secondCateId: [
      { required: true, message: "二级课程分类id不能为空", trigger: "blur" }
    ],
    thirdCateId: [
      { required: true, message: "三级课程分类id不能为空", trigger: "blur" }
    ],
    free: [
      { required: true, message: "售卖方式不能为空", trigger: "change" }
    ],
    price: [
      { required: true, message: "课程价格不能为空", trigger: "blur" }
    ],
    templateType: [
      { required: true, message: "模板类型不能为空", trigger: "change" }
    ],
    templateUrl: [
      { required: true, message: "自定义模板不能为空", trigger: "blur" }
    ],
    status: [
      { required: true, message: "课程状态不能为空", trigger: "change" }
    ],
    purchaseEndTime: [
      { required: true, message: "有效期结束时间不能为空", trigger: "blur" }
    ],
    step: [
      { required: true, message: "信息填写进度不能为空", trigger: "blur" }
    ],
    validDuration: [
      { required: true, message: "课程有效期不能为空", trigger: "blur" }
    ],
    depId: [
      { required: true, message: "部门id不能为空", trigger: "blur" }
    ],
    delFlag: [
      { required: true, message: "逻辑删除不能为空", trigger: "blur" }
    ],
  }
});

const { queryParams, form, rules } = toRefs(data);

/** 查询课程列表 */
function getList() {
  loading.value = true;
  listCourse(queryParams.value).then(response => {
    courseList.value = response.rows;
    total.value = response.total;
    loading.value = false;
  });
}

// 取消按钮
function cancel() {
  open.value = false;
  reset();
}

// 表单重置
function reset() {
  form.value = {
    id: null,
    insId: null,
    name: null,
    courseType: null,
    coverUrl: null,
    firstCateId: null,
    secondCateId: null,
    thirdCateId: null,
    free: null,
    price: null,
    templateType: null,
    templateUrl: null,
    status: null,
    purchaseStartTime: null,
    purchaseEndTime: null,
    step: null,
    score: null,
    mediaDuration: null,
    validDuration: null,
    sectionNum: null,
    depId: null,
    delFlag: null,
    publishTimes: null,
    publishTime: null,
    createTime: null,
    updateTime: null,
    createBy: null,
    updateBy: null
  };
  proxy.resetForm("courseRef");
}

/** 搜索按钮操作 */
function handleQuery() {
  queryParams.value.pageNum = 1;
  getList();
}

/** 重置按钮操作 */
function resetQuery() {
  proxy.resetForm("queryRef");
  handleQuery();
}

// 多选框选中数据
function handleSelectionChange(selection) {
  ids.value = selection.map(item => item.id);
  single.value = selection.length != 1;
  multiple.value = !selection.length;
}

/** 新增按钮操作 */
function handleAdd() {
  reset();
  open.value = true;
  title.value = "添加课程";
}

/** 修改按钮操作 */
function handleUpdate(row) {
  reset();
  const _id = row.id || ids.value
  getCourse(_id).then(response => {
    form.value = response.data;
    open.value = true;
    title.value = "修改课程";
  });
}

/** 提交按钮 */
function submitForm() {
  proxy.$refs["courseRef"].validate(valid => {
    if (valid) {
      if (form.value.id != null) {
        updateCourse(form.value).then(response => {
          proxy.$modal.msgSuccess("修改成功");
          open.value = false;
          getList();
        });
      } else {
        addCourse(form.value).then(response => {
          proxy.$modal.msgSuccess("新增成功");
          open.value = false;
          getList();
        });
      }
    }
  });
}

/** 删除按钮操作 */
function handleDelete(row) {
  const _ids = row.id || ids.value;
  proxy.$modal.confirm('是否确认删除课程编号为"' + _ids + '"的数据项？').then(function() {
    return delCourse(_ids);
  }).then(() => {
    getList();
    proxy.$modal.msgSuccess("删除成功");
  }).catch(() => {});
}

/** 导出按钮操作 */
function handleExport() {
  proxy.download('course/course/export', {
    ...queryParams.value
  }, `course_${new Date().getTime()}.xlsx`)
}

getList();
</script>
